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    <title>Document</title>
    <script>
    
        var iAge = 18;

        var sName = "xiaoming";

        var  bIsgood = true;

        var fResult = 5.5;

        var oStudent01 = null;

        // 区分大小写 下面是两个变量
        var a = 3;
        var A = 3;


        
    
    
    </script>
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